Aluminum alloy and method of producing the same.



ing of the different metals. T

.l1,121,267.' Ho Drawing.

UNITED sm gwm m 3 5m i 9? We e es," 1

i To all whom it may concern:

Be it known thatIfWILLIAM AJllcAnnms,

a citizen of theUnited States, and resident of Bay,.Shore, in the countyof Suffolk and State of New York, have invented a new and usefulImprovement in Aluminum A1- loys and Methods of Producing the Same,- ofwhich the following is a specification -My invention consists in analuminum alloy and in the method of producing the same,

with the object inview of providing an inexpensive alloy suitable forcasting purposes, which will be very strong.

The alloy is composed of aluminum, copper, zinc and antimony, in whichthe amount of zinc exceeds the amount 'of antimony, the amount or"copper exceeds the amount of zinc,- and the amount of aluminum exceedsthe and kept at a dull rml heat Thcnincis then a iltled'toitliemussja'ud;;l he mass-i1g1 'tated thoroughly to insurethe-proper mu;

- operation.

ie compose tion will then be ready for casting at as low a temperatureas possible and it shouldbe reheated as little as possible for thecasting,

tially as above set fort Specification 0! Letters Intent. Patentd nah15,1914. Application filed. April "15, 1914.- semi x'o eaao-zsl' i Thealloy, composed of the abovemiitei riiils combined in the 1proportionssubst'anand by the method substantially as above set forth, will rodueea very satisfactorfycasting .mete in which the articles cast be verystrong.

WVhatI cla1m-is:' I LA composition of matter comprising" mm the metalwill aluminum, copper, zinc and -antimony, in

which -the amount. of zinc exceeds the amount or" antimony, the amountof copper exceeds theam'ount of zinqand the amount of aluminum exceedsthe amount of copper.

2. A composition 'of'mctter 'comprislng 5;;

aluminum, copper, 'zinc and antimony, combined in suhstantiall thefollowing pro ortions, by weight: a uminum, one hun red parts; copper,eighteen parts; zinc, five parts; and antimony three parts. so

3. The method of producing a. composition of matter composed "ofaluminum, copper,'zinc and antimony, consisting in'meltmg a P01131011oi? the aluminum and raising it to a high .tempei-ature, ir'itroducingthe'fib copper, introducing the antimony andthe balance of the aluminum,then lowering the temperature of the mass and ntroducing the zinc, andthoroughly agitating the mass.

In testimony, that I claim the foregoing '10 l asmy invcntioml havesigned my name in presence, of two witnesses, this 14th day of \pril,1914. 1 1 v Witnessesr. I V

F. Gnomes BARRY, Lu. M. Eennm'.

